Convicted of taking part in the beating that led to "Tuba Man" Edward McMichael's death, Billy Chambers, 18, was sentenced Friday, Oct. 14, 2011, to nearly two years in prison for ramming a woman's car in Seattle earlier in the year.

Convicted of taking part in the beating that led to "Tuba Man" Edward McMichael's death, Billy Chambers, 18, was sentenced Friday, Oct. 14, 2011, to nearly two years in prison for ramming a woman's car in

One of three teens convicted of killing Seattle’s “Tuba Man” was sentenced to 22 months in prison Friday for an unrelated assault and car crash.

Billy G. Chambers, 18, previously pleaded guilty to attempted second-degree assault and hit-and-run charges related to the June 23 crash, during which Chambers intentionally rear-ended a woman stopped at a Central District stop light.

Chambers was among the teens who attacked Edward McMichael – a well-known street musician known as the “Tuba Man” who'd long been a fixture at Seattle sporting events – in October 2008 near Seattle Center.

McMichael, 53, died from his injuries after being released from the hospital. After prosecutors found themselves unable to find cooperative witnesses and a juvenile court judge refused try the boys as adults, Chambers, then 15, and the other teens pleaded guilty to manslaughter and were sentenced to short stints in juvenile detention.

Friday afternoon, King County Superior Court Judge Joan Dubuque sentenced Chambers to the maximum available prison term. As they agreed to do in a plea agreement with Chambers, prosecutors requested the young man be sentenced to 18 months in prison, four fewer than DuBuque ordered.

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Addressing the court briefly, Chambers said he has learned his lesson.

"I'm sorry for what happened and I really will learn from my mistakes," Chambers told Dubuque.

On June 23, Chambers was behind the wheel of a mid-1990s Crown Victoria when he rammed another car stopped at 23rd Avenue East and East Jackson Street. The woman driving the other car told responding officers Chambers was angry that she earlier told police Chambers stole from her.

Following the initial accident, both cars headed north on 23rd Avenue. Chambers pulled alongside the victim’s car and rammed it a second time from the side.

The woman lost control of the car and hit a tree, while Chambers fled but was arrested later that day. He initially told police his cousin had his car and that he’d been sleeping all day.

Initially charging Chambers with second-degree assault and hit and run, Senior Deputy Prosecutor Amy Montgomery noted that the teen seems to have no respect for the law or the safety of others.

“While it is fortunate that no occupants of the car or pedestrians were injured, it does not lessen the risk that the defendant’s violent actions could harm someone,” Montgomery said.

Before McMichael's Oct. 25, 2008, beating, the group of teens had joined other youths at Seattle Center for a gathering related to a homecoming dance. McMichael was near a bus stop in the 500 block of Mercer Street when the accused teen and several others started beating him. One punched him so hard, the musician fell and hit his head on the concrete, police said.

They grabbed his wallet, and one pulled a 1979 Sonics NBA World Championship ring, given to McMichael from a friend.

McMichael was taken to Harborview Medical Center and later released to recover at his Vermont Inn apartment. McMichael died there of brain trauma on Nov. 3, 2008; a public memorial at Qwest Field Event Center drew about 1,500 people.

For taking part in the beating, Chambers was sentenced to 15 to 36 weeks in juvenile detention. Since then, he’s been convicted of theft twice, including a felony conviction in January that saw him sentenced to eight months in jail, and arrested on suspicion of robbery, assault and unlawful bus conduct.

Chambers has been jailed since the June 23 crash. He will now be transferred to the Department of Corrections for his first stay in prison.